From 0ad151d7fcf195d5f1c5e0e2e74f66ee31122d50 Mon Sep 17 00:00:00 2001
From: boreddevnl <chris@boreddev.nl>
Date: Fri, 17 Apr 2026 09:42:27 +0200
Subject: [PATCH] OPTIMIZATION: Throttle terminal/Bsh idle polling

---
 src/userland/cli/bsh.c      | 3 ++-
 src/userland/gui/terminal.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/userland/cli/bsh.c b/src/userland/cli/bsh.c
index d8e999b..2c07eb8 100644
--- a/src/userland/cli/bsh.c
+++ b/src/userland/cli/bsh.c
@@ -1248,7 +1248,8 @@ static int read_line(char *out, int max_len, const char *prompt) {
         char ch = 0;
         int got = sys_tty_read_in(&ch, 1);
         if (got <= 0) {
-            sys_yield();
+            // Throttle idle input polling to avoid pegging the CPU at 100%
+            sleep(1);
             continue;
         }
 
diff --git a/src/userland/gui/terminal.c b/src/userland/gui/terminal.c
index 928565c..0b0f6cb 100644
--- a/src/userland/gui/terminal.c
+++ b/src/userland/gui/terminal.c
@@ -885,7 +885,8 @@ int main(void) {
             draw_tabs();
             draw_session(&g_tabs[g_active_tab]);
         } else {
-            sys_yield();
+            // Avoid a tight poll loop when idle; sleep yields to the scheduler.
+            sleep(1);
         }
     }